JP6866045B2 - Processing machine and processing method - Google Patents

Description

The present disclosure relates to a processing machine and a processing method for processing a work from a plurality of directions.

Conventionally, as this type of processing machine, a transfer press machine that presses a tubular work and then processes the work from a plurality of directions orthogonal to the pressing direction is known (see, for example, Patent Document 1). ).

Japanese Unexamined Patent Publication No. 2003-191098 (Figs. 2 and 4)

However, in the above-mentioned conventional processing machine, every time the processing direction with respect to the work changes, it is necessary to eject the work from the die and move it to the next die, so that the surface of the work is scratched by sliding contact with the die. There was a problem that it was easy. Further, if the work is loosely fitted to the die so that the surface of the work is not easily scratched, there arises a problem that the processing position varies. Therefore, there has been a demand for the development of a technique capable of processing the work from a plurality of directions without damaging the surface of the work and with high position accuracy.

The invention of claim 1 made to solve the above problems is a processing machine that moves a work jig holding a tubular work to a plurality of processing devices and processes the work a plurality of times. The work jig has a jig base portion having a work fitting hole in which the work is fitted leaving one end thereof, and a central axis direction of the work fitting hole and an axis orthogonal direction orthogonal to the central axis direction. In both directions, it moves between the first position separated from the work fitting hole and the second position closer to the work fitting hole than the first position in both directions, and at or near the second position. A work holding member that abuts on one end of the work from the central axis direction, an elastic member that urges the work holding member to the second position, and a plurality of punches that communicate with the work fitting hole from the side. The plurality of processing devices are provided with a guide hole, and the plurality of processing devices are provided with a plurality of core metal capable of advancing and retreating into the work, and the core metal is inserted into the work fitting hole through the punch guide hole. It is a processing machine equipped with a punch that collaborates to press and process the work.

The invention according to claim 2 is a support base that supports the work holding member so as to be linearly movable in the direction orthogonal to the axis and is supported by the jig base portion so as to be linearly movable in the central axis direction, and the jig. The first arm, which is rotatably supported by the base portion and is pushed and rotated by the work holding member separated from the central axis, rotates integrally with or in conjunction with the first arm, and the first arm The processing according to claim 1, further comprising a second arm that presses the support base in a direction away from the work fitting hole in the central axis direction when the arm is pushed by the work holding member and rotates. It is a machine.

The processing machine according to claim 1, wherein the work holding member is arranged at a plurality of positions around the central axis of the work fitting hole, and the common support base is supported. Is.

According to the fourth aspect of the present invention, the work is provided at a position different from that of the processing apparatus, and the work forms a tubular shape passing through the inside and moves linearly on the coaxial of the work fitting hole to form the work fitting hole. A discharge sleeve that slides into contact with the plurality of work holding members in the process of approaching and retracts the plurality of work holding members to the first position, and the discharge that retracts the plurality of work holding members to the first position. The processing machine according to claim 3, further comprising a knockout pin for pushing out the work in the work fitting hole toward the sleeve.

The invention of claim 5 is provided at a position different from that of the processing apparatus, has a long shape, and has a temporary holding portion in which a work is temporarily held by fitting the work at the tip portion, and the work fitting hole. A pushing rod that moves linearly on the same axis to push the work into the work fitting hole, and the first position that is provided on the pushing rod and is in sliding contact with the work holding member in the process of approaching the work fitting hole. The processing machine according to claim 3 or 4, further comprising a first sliding contact portion to be retracted into.

According to the sixth aspect of the present invention, the plurality of work holding members project from the end portion close to the work fitting hole toward the central axis side of the work fitting hole and are fitted into the work fitting hole. The work is provided with a work contact portion that comes into contact with the work from the direction of the central axis of the work fitting hole, and the first sliding contact portion is arranged at an end portion on the side far from the opening of the work fitting hole. The processing machine according to claim 5, wherein the work holding member is retracted to the first position so as not to come into contact with the work holding member.

The invention of claim 7 is a revolution base that rotates about a revolution axis, and the revolution base that is arranged at a position that divides the revolution axis into a plurality of equal parts and can rotate around a rotation axis that is parallel to the revolution axis. A plurality of rotation bases supported by the revolution base, a sun gear that can rotate around the revolution axis separately from the revolution base, and a plurality of rotation bases integrally rotated and gear-connected to the sun gear. A plurality of planetary gears and a plurality of the work jigs are provided on the plurality of rotation bases and arranged so that the central axis of the work fitting hole and the rotation axis coincide with each other. A work supply device that supplies the work to the work jig by arranging one of the plurality of fixed division positions whose revolution axis circumference is equally divided and fixed at the fixed division position, and the work supply. A work discharging device, which is arranged at one fixed division position different from the device and discharges the work from the rotating base, is provided, and the plurality of processing devices include the work supply device and the work discharging device. The revolution base is unidirectionally rotated by the revolution step angle so that the work jigs are sequentially arranged from the fixed division position to the fixed division position adjacent to the fixed division position. The invention according to any one of claims 1 to 6, further comprising a revolution control unit for rotating the sun gear and a rotation control unit for positioning and controlling the sun gear at a plurality of rotation positions according to the rotation of the revolution base. It is a processing machine.

In the invention of claim 8, the rotation control unit rotates the rotation base by a preset rotation step angle each time the revolution base revolves by the revolution step angle, and the rotation base rotates at each fixed division position. The processing machine according to claim 7, wherein the position of the work facing the revolution axis side is changed.

In the invention of claim 9, the rotation control unit controls the rotation base to be positioned at a plurality of rotation positions while the revolution is stopped, and at least one of the plurality of processing devices is the rotation axis of the work during the revolution stop. The processing machine according to claim 7 or 8, which processes a plurality of surrounding parts.

The invention of claim 10 is a processing method of drilling a plurality of through holes orthogonal to the axial direction of a tubular work by using the processing machine of claims 1 to 9.

In the processing machine of claim 1, in a state where the work is fitted in the work fitting hole of the work jig with one end left, the work moves to a plurality of processing devices together with the work jig and is applied to the work a plurality of times. Perform processing. As a result, the frequency of putting the work in and out of the work fitting hole is suppressed, and the work is less likely to be scratched. Further, since the work jig is provided with a work holding member that comes into contact with one end of the work from the direction of the central axis, it is possible to prevent the work from being displaced with respect to the moving work jig. Further, the work holding member has a first position separated from the work fitting hole in both the central axis direction and the axial orthogonal direction of the work fitting hole, and a second position closer to the work fitting hole than the first position in both directions. Since it moves between the work and the work holding member, the work can be easily inserted and removed from the work fitting hole with the work holding member arranged at the second position. Moreover, the work jig is provided with a plurality of punch guide holes that communicate with the work fitting holes from the side, and the punches of the plurality of processing devices pass through the plurality of punch guide holes and plunge into the work fitting holes. Since the workpiece is machined, it is possible to improve the positional accuracy between a plurality of workpieces machined by punches of different processing devices. That is, according to the processing machine of the present invention, the surface of the work is not easily scratched and processing can be performed with high position accuracy.

To move the work holding member between the first position and the second position to approach and separate from the work fitting hole in both the central axis direction and the axial orthogonal direction of the work fitting hole. As a configuration, for example, a guide groove extending so as to connect between the first position and the second position may be provided, and a protrusion provided on the work holding member may be slidably engaged with the guide groove. The configuration of 2 may be used.

Since the processing machine according to claim 3 is provided with a plurality of work holding members, the work is stably prevented from coming off from the work fitting hole.

According to the processing machine of claim 4, the work can be smoothly discharged from the work fitting hole.

In the processing machine of claim 5, the work can be efficiently supplied to the work pushing rod.

In the processing machine of claim 6, the work can be fitted into the work fitting hole without sliding contact with the work support member, and the work is less likely to be scratched.

In the processing machine of claim 7, a plurality of rotation bases are rotatably supported around the revolution axis of the revolution base, and at a plurality of fixed division positions around the revolution axis, a work supply device, a plurality of processing devices, and the like. Since the work discharge device is arranged, many works can be continuously machined by continuously rotating the revolution base.

According to the processing machine of claim 8, each time the rotation base revolves by the revolution step angle, the rotation base rotates by the rotation step angle, and a plurality of processes are performed at intervals of the rotation step angles around the rotation axis of the work. be able to.

According to the processing machine of claim 9, the work can be processed from more directions than the number of processing devices.

In the processing method of claim 10, since a plurality of through holes are formed in the tubular work by using the processing machine of claims 1 to 9, the surface of the work is not easily scratched and a plurality of holes are formed on the work. The position of the through hole is stable.

Perspective view of the work machined by the processing machine of the present embodiment Perspective view of the processing machine Top view of the processing machine Side sectional view of the processing machine in the AA cross section of FIG. Side view of a part of the processing machine Side sectional view of the rotation base Side sectional view of the rotation base with the work pushed into the work fitting hole Side sectional view of the rotation base in a state where the work is prevented from coming off in the work fitting hole. Perspective view of the work jig provided for the rotation base Side sectional view of the work jig Side sectional view of work supply device Side sectional view of work supply device Perspective view of the main part of the work feeder Side sectional view of work jig, punch and core metal Side view of work ejector Side sectional view of the work discharge sleeve in the work jig. Block diagram of the drive source of the processing machine Flow chart of machining control program Timing chart of machine operation Flowchart of the driven control program Flowchart of the driven control program

Hereinafter, embodiments of the processing machine 10 will be described with reference to FIGS. 1 to 21. FIG. 1 shows a work 90 in which a through hole 90E is machined by a processing machine 10. The work 90 has a tubular shape extending in the vertical direction, the upper end is closed by the end wall 91, and the lower end is open. Further, the work 90 has a shape in which the diameter is gradually reduced upward, and includes a large diameter portion 90A, a medium diameter portion 90B, and a small diameter portion 90C in order from the lower end side. Then, the through hole 90E is machined by the processing machine 10 at a position that divides the peripheral surface of the small diameter portion 90C into eight equal parts.

The work 90 before the through hole 90E is machined is formed from sheet metal by a transfer press machine (not shown). At that time, the work 90 is formed with the end wall 91 located at the lower end, turned upside down, and discharged from the transfer press machine to the work accommodating portion 100 (see FIG. 12) described later of the processing machine 10.

As shown in FIG. 3, the processing machine 10 has, for example, a square support plate 11, and the central pedestal 12 shown in FIG. 4 stands up from the center of the upper surface of the support plate 11. Further, the stator of the public rotation servomotor 17 is fixed to the upper surface of the central gantry 12, and the main body of the speed reducer 18 is fixed to the upper surface of the stator. The rotation output shaft of the revolution servomotor 17 is connected to the input portion at the center of the lower surface of the speed reducer 18, while the revolution base 19 is attached to the output portion at the center of the upper surface of the speed reducer 18. As a result, the revolution base 19 is rotationally driven by using the revolution servomotor 17 as a drive source. Hereinafter, the rotation axis of the revolution base 19 will be referred to as a revolution axis J1.

The revolution base 19 has a disk shape and projects laterally from the speed reducer 18. Further, as shown in FIG. 5, a plurality of rotation bases 30 are attached to the revolution base 19 so as to be rotatable around the rotation axis J2 parallel to the revolution axis J1. Specifically, the rotation axis J2 that passes through the four intersections of the fictitious line that divides the revolution axis J1 into four equal parts and the fictitious circle centered on the revolution axis J1 and is parallel to the revolution axis J1. Four rotation bases 30 are supported so as to be rotatable around (see FIG. 4). Therefore, as shown in FIG. 6, the revolution base 19 is formed with a circular through hole 19A centered on each rotation axis J2, and the support sleeve 37 is fixed therethrough. The rotary sleeve 31 is rotatably supported by a pair of bearings B in the support sleeve 37.

The rotary sleeve 31 projects upward and downward from the support sleeve 37, and a planetary gear 25 is integrally rotated to the upper end of the support sleeve 37. The planetary gear 25 is, for example, a disk-shaped spur gear, which projects laterally from the rotary sleeve 31. Then, as shown in FIG. 3, a plurality of planetary gears 25 of the rotation base 30 are gear-connected to the sun gear 24 arranged above the center of the revolution base 19.

Although four rotation bases 30 are supported in the revolution base 19 of the present embodiment, there may be a plurality of rotation bases 30 other than the four. Further, although the sun gear 24 and the planetary gear 25 are directly gear-connected, the sun gear 24 and the planetary gear 25 may be gear-connected via an idle gear.

As shown in FIG. 5, the sun gear 24 is supported by a gate-shaped pedestal 20 that stands up from the support plate 11. The gate-shaped pedestal 20 has a pair of legs that face each other of both ends of the bridge portion 20A (see FIG. 3) extending horizontally along the diagonal line of the support plate 11 at the upper position of the revolution base 19 with the revolution base 19 in between. It has a structure supported by a part 20B (see FIG. 5). Further, a through hole 20C centered on the revolution axis J1 is formed in the crosslinked portion 20A, and the through hole 20C is fixed in a state where the support sleeve 20D penetrates the through hole 20C. The drive shaft 23 is rotatably supported inside the support sleeve 20D via a bearing, and the above-mentioned sun gear 24 is integrally rotatably attached to the lower end of the drive shaft 23. Further, a cylindrical spacer 28 is fixed on the upper surface of the cross-linked portion 20A so as to surround the through hole 20C, and the speed reducer 22 and the rotation servomotor 21 are assembled on the spacer 28 in a stacked state. .. Then, the rotation output shaft of the rotation servomotor 21 is connected to the input portion at the center of the upper surface of the speed reducer 22, and the output portion on the lower surface of the speed reducer 22 is connected to the drive shaft 23. As a result, the sun gear 24 is rotationally driven separately from the revolution base 19, and a plurality of rotation bases 30 are rotationally driven in conjunction with the sun gear 24. That is, the plurality of rotation bases 30 revolve around the revolution axis J1 by the power of the revolution servomotor 17, and rotate around the rotation axis J2 parallel to the revolution axis J1 by the power of the rotation servomotor 21. ..

As shown in FIG. 6, each rotation base 30 is provided with a work jig 40 for holding the work 90. The work jig 40 includes a die 32 fitted and fixed to the lower end portion of the rotary sleeve 31, and a work fitting hole 32D penetrates vertically through the central portion of the die 32. The work fitting hole 32D has a shape in which the diameter is gradually reduced from the lower side to the upper side, and has a large diameter portion 32A, a medium diameter portion 32B, and a small diameter portion 32C in order from the lower end side.

Then, as shown in FIG. 8, the work 90 is centered on the work jig 40 by fitting the work fitting hole 32D with the large diameter portion 32A and the small diameter portion 32C, and the knockout pin 39 described later. It is positioned in the axial direction by contact with. Further, in the positioned state, a part of the work 90 projects downward from the work fitting hole 32D.

As shown in FIG. 7, the work jig 40 is provided with a plurality of punch guide holes 32E penetrating the rotary sleeve 31 and the die 32 in a direction orthogonal to the rotation axis J2. The plurality of punch guide holes 32E are arranged at positions that divide the rotation shaft J2 into eight equal parts, and are arranged at positions closer to the middle diameter portion 32B of the small diameter portion 32C in the axial direction of the rotation shaft J2. Further, the size of the punch guide hole 32E from the outer surface of the rotary sleeve 31 to the position closer to the inner surface of the die 32 is approximately three times or more the inner diameter of the inner surface side of the die 32.

The rotation base 30 of the present embodiment is provided with eight punch guide holes 32E, but there may be a plurality of holes 32E other than the eight, or one.

As shown in FIG. 8, the work jig 40 has a pair of work support members 43 for preventing the work 90 fitted in the work fitting hole 32D from coming off. The pair of work support members 43 face each other in the horizontal direction at a position below the die 32, approach and separate from each other, and move up and down in conjunction with the approach and separation operations. Hereinafter, the mechanism of the work jig 40 will be described in detail.

As shown in FIG. 10, the flange 32F projects laterally from the lower end of the die 32 and is overlapped and fixed on the lower surface of the rotary sleeve 31. Further, as shown in FIG. 9, the flange 32F has a shape in which two 180 ° apart discs are cut flat, and the flat cut portions are provided with a pair of first supports, which will be described in detail later. The arm 33 is fixed. Further, a pair of through holes are formed at two positions of the flange 32F, which are offset by 90 ° from the pair of first support arms 33, and a pair of support poles 49 fitted and fixed to the through holes are provided. It hangs down from the flange 32F. Then, the elevating base 34 is supported by these support poles 49 so as to be able to move up and down.

The elevating base 34 has an annular ring member 34F, and two places 180 ° apart from the outer peripheral surface of the ring member 34F are cut flat, and a pair of second support arms 35 are cut in those cut parts. Is fixed. Further, a pair of through holes are formed at two positions of the ring member 34F, which are offset by 90 ° from the pair of second support arms 35, and the guide sleeve 34S is fixed in a state of penetrating them. Then, the pair of support poles 49 described above are inserted inside the pair of guide sleeves 34S, and the elevating base 34 is supported by the support poles 49 so as to be able to move up and down as described above. Further, flanges 34T and 49F are provided at the lower ends of the guide sleeve 34S and the support pole 49, respectively, and a compression coil spring 48 is sandwiched between the flanges 34T and 49F to urge the elevating base 34 upward. There is.

The pair of second support arms 35 each form a strip extending in the vertical direction and face each other with the rotation axis J2 in between. Further, the upper ends of the pair of second support arms 35 are bent at right angles to the sides approaching each other, and the flatly cut portion of the ring member 34F described above is fitted into the square groove formed on the tip surfaces thereof. It is fixed.

As shown in FIG. 10, a pair of through holes 35A penetrating in the opposite directions thereof are formed side by side in both second support arms 35, and a pair of guide sleeves 35B are fitted and fixed to them. There is. Further, a pair of support rods 42 are inserted through the pair of guide sleeves 35B so as to be linearly movable. Then, it is fixed to one work support member 43 at the tip of a pair of support rods 42 of one second support arm 35, and the other is fixed to the tip of a pair of support rods 42 of the other second support arm 35. It is fixed to the work support member 43.

Further, a compression coil spring 36 is inserted in a portion of the support rod 42 sandwiched between the work support member 43 and the second support arm 35 so that the work support member 43 is separated from the second support arm 35. Being urged. Further, the base end portion of the support rod 42 opposite to the work support member 43 is a head portion 42H whose diameter is expanded in a stepped manner, and when the work support members 43 are closest to each other, the head portion 42H comes into contact with the guide sleeve 35B. Further, in the second support arm 35, a screw hole 35C parallel to the pair of through holes 35A is formed between the pair of through holes 35A, and a stopper bolt 42S is screwed therein. Then, when the work support members 43 are most separated from each other, the stopper bolt 42S comes into contact with the work support member 43.

As shown in FIG. 9, the pair of work support members 43 form a shape in which a cylinder stands up from the center of the upper surface of the hexagonal column when combined, and the pair is divided into two vertically divided into each work support member 43. It has become. Then, the pair of support rods 42 described above are connected to the hexagonal column divided body 43X of the work support member 43. Further, the upper end of the cylindrical split body 43Y of the support rod 42 is received inside the ring member 34F. Further, as shown in FIG. 10, an arc groove 43M extending continuously in the vertical direction is formed on the facing surface of the pair of work support members 43, and the arc groove 43M is formed on the upper end portion of the work support member 43. An arc projecting wall 43A (corresponding to a "work contact portion" in the claims) having a stepped upper end is provided.

As shown in FIG. 9, the pair of first support arms 33 described above has a crank shape in which a pair of horizontal portions 33X and 33Y arranged so as to be displaced in the diagonally vertical direction are connected by a vertical portion 33Z. Then, the end of the upper horizontal portion 33X of each first support arm 33 is fixed to the flange 32F to cover the second support arm 35 from above, and the vertical portion 33Z faces the upper portion of the second support arm 35 from the side. doing. Further, the lower horizontal portion 33Y extends from the head portion 42H of the support rod 42 to a position away from the second support arm 35 and covers the head portion 42H from above. Further, the first support arm 33 is formed with a lever receiving portion 33U straddling the entire horizontal portion 33Y and the lower portion of the vertical portion 33Z so as to divide them into two in the width direction. Further, a support pin 41P is delivered between the facing surfaces of the lever receiving portion 33U at the tip of the horizontal portion 33Y of the first support arm 33. Then, the relay lever 41 is received by the lever receiving portion 33U and is rotatably supported by the support pin 41P.

As shown in FIG. 10, the relay lever 41 has a horizontal arm 41X extending substantially horizontally and a vertical arm 41Y extending downward at a right angle from one end thereof, and supports a corner portion between the horizontal arm 41X and the vertical arm 41Y. 41P penetrates. Further, a lever receiving portion 35U is formed on the upper portion of the second support arm 35 at a position facing the lever receiving portion 33U, and the tip portion of the lateral arm 41X is received by the lever receiving portion 35U. Further, the tip of the lateral arm 41X is provided with a semicircular protrusion 41A that bulges downward, and is in contact with the lower surface of the lever receiving portion 35U. Further, the lower end portion of the vertical arm 41Y is also provided with a semicircular protrusion 41B that bulges toward the second support arm 35 side, and is in contact with the end surface of the head portion 42H. As a result, when the pair of work support members 43 are expanded, the vertical arm 41Y is pushed by the support rod 42, and the horizontal arm 41X pushes the second support arm 35 downward. As a result, a pair of work support members 43 descend together with the elevating base 34.

That is, the pair of work support members 43 descend while being separated from each other. At this time, the compression coil springs 36 and 48 are compressed. Further, when the pair of work support members 43 is stopped to be pushed open, the elastic force of the compression coil springs 36 and 48 causes the pair of work support members 43 to rise while approaching each other, contrary to the above operation. To do. Further, as shown in FIGS. 7 and 16, when the pair of work support members 43 reach the first position where they are maximally separated, the large diameter portion 32A of the work fitting hole 32D is between the arc projecting walls 43A. It expands from the diameter of the work and is located below the work 90 fitted in the work fitting hole 32D. On the other hand, as shown in FIG. 14, when the pair of work support members 43 reach the second position where they are closest to each other, the distance between the arc projecting walls 43A is larger than the diameter of the large diameter portion 32A of the work fitting hole 32D. It becomes slightly narrower and comes into contact with the fitted work 90 of the work fitting hole 32D from below, and the work 90 is prevented from coming off by the work fitting hole 32D.

As shown in FIG. 6, the rotation base 30 is provided with a knockout pin 39 for discharging the work 90 fitted in the work fitting hole 32D. The knockout pin 39 is provided with a stepped surface 39D near the upper end, and the main body 39H below the stepped surface 39D is supported by a slide guide 44 fitted and fixed to the upper end of the rotary sleeve 31 so as to be linearly movable. ing. Further, an L-shaped support member 45 stands up from the upper surface of the slide guide 44. Then, the small diameter portion 39S of the knockout pin 39 above the step surface 39D is supported by the support member 45 so as to be linearly movable, and the step surface 39D comes into contact with the lower surface of the support member 45, so that the knockout pin 39 has a movable range. Positioned at the top position. Further, a flange 39F projects from the intermediate position of the main body 39H of the knockout pin 39, and a compression coil spring 38 is provided between the flange 39F and the upper surface of the die 32 to urge the knockout pin 39 to the upper end position. .. At the upper end position, the lower end portion of the knockout pin 39 is in a state of plunging into the upper end portion of the work fitting hole 32D where the work 90 does not enter. This concludes the description of the structure of the rotation base 30.

As shown in FIG. 3, the processing machine 10 includes a work supply device 50 that supplies the work 90 to the rotation base 30, and a plurality of (for example, two) processing devices that process the work 90 held by the rotation base 30. A work discharging device 80 is provided for discharging the processed work 90 from the rotation base 30. The work supply device 50, the work discharge device 80, and the plurality of processing devices 70 divide the support plate 11 into a plurality of equal parts (for example, 4) around the revolution axis J1 in response to the arrangement of the plurality of rotation bases 30 with respect to the revolution base 19. It is arranged at the fixed division positions R1 to R4 which are equally divided).

As shown in FIG. 4, the work supply device 50 arranged at the fixed division position R1 as shown in FIG. 3 has a third in the revolution radial direction (direction orthogonal to the revolution axis J1 and passing through the fixed division position R1). A slide base 53 that reciprocates between one slide position (position shown in FIG. 11) and a second slide position (position shown in FIG. 12) is provided. Further, as shown in FIG. 13, a pair of work gripping members 52 capable of gripping the work 90 from the side are mounted on the slide base 53.

Specifically, a pair of support blocks 53A stand up from the upper surface of the slide base 53 and face each other in the first horizontal direction orthogonal to the radial direction of revolution. A through hole penetrating in the first horizontal direction is formed in the support block 53A, and the rod 52R is supported in the through hole so as to be linearly movable. Then, the one work gripping member 52 described above is fixed to the tip ends of the pair of rods 52R.

The upper end portions of the pair of levers 124 are connected to the base end portions of the pair of rods 52R. The levers 124 are bent in a boomerang shape, and the bent portions are rotatably supported by a pair of side walls 53S hanging from both side portions of the slide base 53 by pins 124P. Further, the portions below the bent portion of the pair of levers 124 extend downward so as to approach each other, and the roller 124R is attached to the lower end portions thereof. Further, below the slide base 53, a groove-shaped rail 125 extending in the opposite direction between the work gripping members 52 is provided. The groove-shaped rail 125 is integrally with the slide base 53, moves linearly in the radial direction of revolution, and is connected to the slide base 53 so as to be able to move up and down. Then, the rollers 124R of both levers 124 are engaged with the grooved rail 125, and the pair of work gripping members 52 approach and separate in conjunction with the raising and lowering of the grooved rail 125. The groove-shaped rail 125 is moved up and down using a brake motor 110, which will be described later, as a drive source.

Further, a vertical groove 52M is formed on the facing surfaces of the pair of work gripping members 52. As shown in FIG. 8, the vertical grooves 52M have a shape in which the diameter is reduced in a stepped manner above the intermediate position in the vertical direction. When the work 90 is sandwiched between the pair of work gripping members 52, the large diameter portion 90A and the medium diameter portion 90B of the work 90 come into contact with the inner surface of the vertical groove 52M, as shown in FIG.

As shown in FIG. 12, when the slide base 53 is located at the second slide position on the side away from the revolution axis J1, the tubular work accommodating vertically extending at the position directly above the work gripping member 52. A unit 100 is provided. Then, as described above, the work 90 is discharged into the work accommodating portion 100 from a transfer press machine (not shown). Further, the lower end portion of the work accommodating portion 100 is opened and closed by a slide lid 101 that moves in the horizontal direction. Further, the slide lid 101 is driven by a door drive source 54 (for example, a solenoid, an air actuator) shown in FIG. 17, which is separate from the brake motor 110. Further, the work accommodating portion 100 is provided with a work detection sensor 54S (see FIG. 17) that detects whether or not the work 90 is accommodated therein.

Then, the work accommodating portion 100 opens on condition that the slide base 53 is in the second slide position, and the work gripping member 52 receives and grips the work 90 from the work accommodating portion 100. Further, when the slide base 53 is located at the first slide position on the revolution axis J1 side, as shown in FIG. 11, the work 90 gripped by the work gripping member 52 is stopped at the fixed division position R1 to fit the work of the rotation base 30. It is arranged coaxially below the hole 32D.

The slide base 53 operates by receiving power from a brake motor 110 common to the work gripping member 52. The power transmission mechanism will be described later.

As shown in FIG. 4, the work supply device 50 is provided with a work pushing rod 51 that pushes the work 90 gripped by the work gripping member 52 below the work fitting hole 32D into the work fitting hole 32D from below. ing. As shown in FIG. 7, the work pushing rod 51 has a cylindrical main body portion 51A, and the upper portion of the main body portion 51A is in order from the bottom, the tapered portion 51B, the first cylindrical portion 51C, and the second cylindrical portion. The 51D, the third cylindrical portion 51E, and the fourth cylindrical portion 51F are provided, and a substantially horizontal stepped surface is provided between them. It should be noted that the diameter of the first to third cylindrical portions 51C to 51E above the intermediate positions is reduced with a slight taper angle.

The work pushing rod 51 is moved up and down by the ball screw mechanism. Specifically, as shown in FIG. 11, the work pushing rod 51 is fixed to the upper end portion of the ball screw 59 extending vertically. Further, the work pushing rod 51 has a vertical groove (not shown), and an engaging protrusion (not shown) provided on the support base 65 of the work supply device 50 is slidably engaged with the vertical groove to prevent rotation. .. A ball nut 60 screwed into the ball screw 59 is supported on the support base 65 so as to be rotatable and immovable up and down, and the rotary output shaft of the work gripping servomotor 55 is a pair of pulleys with the speed reducer 56. It is connected to the ball nut 60 via a 57 and a belt 58. As a result, the work pushing rod 51 is driven so as to move up and down.

As shown in FIG. 11, the work pushing rod 51 normally stands by below the work 90 held by the work gripping member 52, and rises when the slide base 53 reaches the first slide position. Then, the upper end portion of the work pushing rod 51 rushes into the work 90 and is fitted. Then, the work gripping member 52 is opened, the work pushing rod 51 is further raised, and the work 90 fitted to the work pushing rod 51 enters the pair of work supporting members 43 without interfering with each other. Then, when the upper end of the work 90 approaches the arc protruding wall 43A of the work support member 43, the tapered portion 51B of the work pushing rod 51 comes into contact with the lower edge portion of the pair of work support members 43.

When the work pushing rod 51 is further raised from there, the tapered portion 51B slides into contact with the lower edge portion of the pair of work support members 43, and the pair of work support members 43 is pushed and expanded, and the pair of work support members 43 are lowered in conjunction with it. Meanwhile, the work 90 passes through the pair of work support members 43 without interfering with each other and is fitted into the work fitting hole 32D. In this way, since the work 90 is fitted into the work fitting hole 32D without sliding contact with the work support member 43, the work 90 is less likely to be scratched. In the present embodiment, the lower edge portion of the work support member 43 corresponds to the "first sliding contact portion" in the claims.

Further, as shown in FIG. 7, when the small diameter portion 90C of the work 90 is press-fitted into the small diameter portion 32C of the work fitting hole 32D, the work pushing rod 51 reverses from the ascending position and descends, and moves to the initial standby position. To do. Then, the pair of work support members 43 rise while approaching each other, and as shown in FIG. 8, the arc protruding wall 43A of the work support member 43 abuts on the work 90 from below, and the work 90 is inside the work fitting hole 32D. It is stopped by.

As shown in FIG. 3, the processing apparatus 70 is arranged at the fixed division position R2 adjacent to the fixed division position R1 in which the work supply device 50 is arranged in the clockwise direction and the fixed division position R3 further adjacent to the fixed division position R1. ing. Since these processing devices 70 have the same structure, the processing device 70 at the fixed division position R3 shown in FIG. 4 will be described below. As shown in the figure, the processing apparatus 70 has a pipe-shaped core metal 71 extending in the vertical direction. The core metal 71 is supported so as to be movable up and down by an arm portion 66A protruding laterally from the support base 66, and is arranged coaxially with the revolution axis J1 of the rotation base 30 when stopped at the fixed division position R3. ..

As shown in FIG. 14, the core metal 71 has a stepped diameter in the upper portion from the position near the upper end. Further, at the upper end portion of the core metal 71, a core metal hole 71A penetrating in the radial direction is formed at a position that divides the circumferential direction into eight equal parts. Two of them, the core metal holes 71A, extend in the direction of the revolution radius (the direction orthogonal to the revolution axis J1 and passing through the fixed division position R3).

The core metal 71 is driven by receiving power from the brake motor 110 described above, and normally, the rotation base 30 stands by below the moving region. Then, when the rotation base 30 stops above the rotation base 71, the rotation base 30 rises, and the core metal holes 71A of the core metal 71 rise to a position at the same height as the plurality of punch guide holes 32E of the rotation base 30. The core metal 71 operates by receiving power from the brake motor 110 described above. The power transmission mechanism will be described later.

As shown in FIG. 4, a ball screw mechanism 73 assembled on the upper part of the support base 66 is arranged on the opposite side of the revolution shaft J1 across the moving region of the rotation base 30 in the processing apparatus 70. The ball screw 73A of the ball screw mechanism 73 extends in the radial direction of revolution and is supported so as to be non-rotatable and linearly movable. A punch 72 is fixed to the tip of the ball screw 73A. Further, the ball nut (not shown) of the ball screw mechanism 73 is provided so as to be rotatable and immovable so that the power of the punch servomotor 74 is applied to the ball nut via a pair of pulleys and a timing belt (not shown). It has become.

The punch 72 extends coaxially with the ball screw 73A, and the tip portion thereof is reduced in diameter as shown in FIG. Further, the punch 72 is arranged at the same height as the punch guide hole 32E of the rotation base 30. Then, with the punch guide hole 32E of any of the rotation bases 30 facing the revolution radius direction and the core metal 71 arranged in the work 90, the punch 72 rushes into the punch guide hole 32E and penetrates the work 90. The hole 90E is drilled. At that time, the punching residue passes through the core metal 71 and is discharged below the core metal 71.

As shown in FIG. 3, the work discharge device 80 is arranged at the fixed division position R4 clockwise next to the fixed division position R3 where the pair of processing devices 70 are arranged. As shown in FIG. 15, the work discharge device 80 has a tubular discharge sleeve 81 extending in the vertical direction. The discharge sleeve 81 is movably supported up and down by an arm portion 67A protruding laterally from the support base 67, and is arranged coaxially with the revolution axis J1 of the rotation base 30 when stopped at the fixed division position R4. .. The discharge sleeve 81 operates by receiving power from the brake motor 110 described above. Further, the pressing rod 83 described below also operates by receiving power from the brake motor 110. These power transmission mechanisms will be described later.

As shown in FIG. 16, a tapered portion 81A whose diameter is reduced upward is provided on the outer peripheral surface of the upper end portion of the discharge sleeve 81. Further, the inner diameter of the discharge sleeve 81 is larger than the outer diameter of the work 90. Then, the discharge sleeve 81 normally stands by below the moving region of the rotation base 30, and when the rotation base 30 stops upward, the discharge sleeve 81 rushes to the upper part in the pair of work support members 43 to form a pair. The work support member 43 is pushed open.

As shown in FIG. 15, a push rod 83 extending in the vertical direction is provided at a position above the moving region of the rotation base 30 in the work discharging device 80, and an arm portion projecting laterally from the upper portion of the support base 67. It is supported by 67B so that it can be moved up and down. Further, the pressing rod 83 is usually held at a position above the moving region of the rotation base 30 by the compression coil spring 83S. Then, the push rod 83 descends with the rotation base 30 stopped downward and the discharge sleeve 81 pushes out the pair of work support members 43, and pushes down the knockout pin 39. As a result, the work 90 is pushed out from the work fitting hole 32D, passes through the inside of the discharge sleeve 81, and is discharged below the discharge sleeve 81.

Next, the power transmission mechanism to each part driven by the brake motor 110 described above will be described. As shown in FIG. 2, the work supply device 50, the pair of processing devices 70, and the work discharge device 80 extend in the horizontal direction orthogonal to the revolution radius direction of the fixed division positions R1 to R4 in which they are arranged. A torque transmission shaft 111 is provided and is rotatably supported. The torque transmission shaft 111 of the work supply device 50 is arranged on the side portion on the work discharge device 80 side, and the pair of processing devices 70 and the torque transmission shafts 111 of the work discharge device 80 are arranged in the entire lateral direction of each of the devices. It extends over. Then, as shown in FIG. 3, adjacent torque transmission shafts 111 are gear-connected by bevel gears 112. Further, the brake motor 110 described above is arranged between the fixed division position R1 and the fixed division position R2, and is connected to the torque transmission shaft 111 at the fixed division position R2 via a speed reducer. As a result, all the torque transmission shafts 111 are rotationally driven by the brake motor 110.

Further, a cam 113 is rotatably supported at the rear portion of the support bases 65, 66, 67 of the work supply device 50, the pair of processing devices 70, and the work discharge device 80 on the opposite side of the revolution shaft J1. .. Each cam 113 is connected to each torque transmission shaft 111 via a pair of pulleys 114 and a timing belt 115. Further, the reduction ratio between the brake motor 110 and all the cams 113 is the same, and the brake motor 110 causes all the cams 113 to rotate at the same rotation speed. Further, a rotation position sensor 113S (see FIG. 17, for example, an encoder) is connected to a component that rotates in conjunction with the cam 113 to detect the rotation position of the cam 113. In addition, in FIG. 2, FIG. 4, and FIG. 15, the cam 113 is shown in a disk shape for simplification.

As shown in FIG. 4, a lever 120 driven by the cam 113 is connected to the slide base 53 of the work supply device 50 via a rod 120R extending substantially horizontally. As a result, as described above, the slide base 53 slides under the power of the brake motor 110.

Further, in order to drive a pair of work gripping members 52 of the work supply device 50, a lever 120 driven by the cam 113 is connected to a rod 120R extending substantially vertically, and a horizontal rolling is performed on the upper end of the rod 120R. The moving plate 126 is connected. Then, the rolling plate 126 moves in parallel up and down in conjunction with the swing of the lever 120. Further, a roller 125R is provided on the lower surface of the grooved rail 125 described with reference to FIG. 13 so as to roll on the rolling plate 126 in the direction of the revolution radius. As a result, the pair of work gripping members 52 approach and separate from each other at an arbitrary position on the slide base 53 by receiving the power of the brake motor 110 as described above.

As shown in FIG. 4, the core metal 71 of the processing device 70 moves up and down by receiving the power of the brake motor 110 as described above via the lever 121 driven by the cam 113. Further, as shown in FIG. 15, the discharge sleeve 81 of the work discharge device 80 also moves up and down by receiving the power of the brake motor 110 as described above via the lever 122 driven by the cam 113. Further, the push rod 83 of the work discharging device 80 moves up and down by being driven by a lever 82 rotatably supported on the upper surface of the support base 67 and a cam 113 rotatably supported on the side portion of the support base 67. As described above, the vehicle descends by receiving the power of the brake motor 110 via the relay rod 123.

As shown in FIG. 17, each drive source such as the brake motor 110, the public rotation servomotor 17, and the rotation servomotor 21 described above is connected to the drive control circuit 130. The drive control circuit 130 is provided with a PLC 131, and when the processing machine 10 is started, the PLC 131 executes the processing control program PG1 (see FIG. 18) to operate the processing machine 10 as follows.

When the machining control program PG1 is executed as shown in FIG. 18, the cam 113 is stopped at the origin position (initial position) and the work 90 is in the work accommodating portion 100 (see FIG. 11) (provided that the work 90 is present in the work accommodating portion 100 (see FIG. 11)). YES) in S11 and S12), the door opening / closing process (S13) is executed. Here, at the origin position of the cam 113, the slide base 53 is arranged at the second slide position, and the pair of work gripping members 52 are arranged below the work accommodating portion 100.

When the door opening / closing process (S13) is executed, the slide lid 101 is opened by the door drive source 54, and one work 90 is delivered from the work accommodating portion 100 to the pair of work gripping members 52.

Then, the cam drive process (S14) is executed after the door opening / closing process (S13), the brake motor 110 is operated, and all the cams 113 are rotationally driven by one rotation. Here, assuming that one rotation of the cam 113 is one cycle, the movable parts of the work supply device 50, the processing device 70, and the work discharge device 80 are moved from the brake motor 110 during one cycle as shown in the timing chart shown in FIG. Operates under the power of. Further, when the cam drive process (S14) is executed, the driven control programs PG2 and PG3 shown in FIGS. 20 and 21 are also executed, and the work gripping servomotor 55, the punching servomotor 74, and the rotation servomotor 21 are also executed. Follows the cam 113 to be detected based on the detection result of the rotation position sensor 113SS.

Specifically, as shown in FIG. 19, in the work supply device 50, the slide base 53 is moved to the first slide position when the cam drive process (S14) is started (see FIG. 11). Then, the work gripping servomotor 55 operates and the work pushing rod 51 rises to a position where it fits in the work 90 gripped by the pair of work gripping members 52 (YES in S31 of the driven control program PG2). S32). At this time, for example, by controlling the force of the work gripping servomotor 55, the work is brought to a position where the stepped surface of the work pushing rod 51 comes into contact with the lower end of the work 90 or the upper surface of the work pushing rod 51 comes into contact with the inner upper surface of the work 90. The push rod 51 is pushed into the work 90. After that, the pair of work gripping members 52 are separated from each other. Then, the work pushing rod 51 rises accordingly (YES, S34 in S33 of the driven control program PG2), and as described above, the work pushing rod 51 expands between the pair of work support members 43 to rotate the rotation base 30. The work 90 is pushed into the work fitting hole 32D of the above. Then, the work gripping servomotor 55 reverses and the work pushing rod 51 returns to the standby position.

In each processing device 70, when the cam drive process (S14) is executed, the core metal 71 rises and the core metal hole 71A of the core metal 71 becomes the same height as the punch guide hole 32E of the rotation base 30. Move to and wait. Then, when the work pushing rod 51 completes pushing the work 90 into the work fitting hole 32D and separates below the pair of work support members 43 (YES in both S41 and S42 of the driven control program PG3), the counter After making the initial setting to set n to "0", the counter n is incremented by one (S43, S44 of the driven control program PG3). Then, the punch servomotor 74 operates, the punch 72 advances from the standby position, drills a through hole 90E in the work 90, and then returns to the standby position (S45 of the driven control program PG3), and then the rotation servomotor 21 operates to drive the rotation base 30 to rotate clockwise with respect to the revolution base 19 by 1/8 rotation (S46 of the driven control program PG3). Then, the counter n is incremented by one, and the above operation is repeated until the counter n becomes “4” (NO loop in S47). By repeating this operation, each processing device 70 drills four through holes 90E in the work 90, respectively.

The core metal 71 may be slightly lowered from the upper end position so that the core metal 71 and the work 90 do not slide in contact with each other only while the rotation base 30 described above rotates 1/8.

In the work discharge device 80, when the cam drive process (S14) is executed, the discharge sleeve 81 rises to push out the pair of work support members 43, and as described above, the work 90 is fitted to the work by the knockout pin 39. Extrude through hole 32D.

As shown in FIG. 19, the above operation is performed during one cycle from the start to the end of the cam drive process (S14). Then, when the cam drive process (S14) is completed, as shown in FIG. 18, the revolution process (S15) is performed and the revolution base 19 is only 90 ° (corresponding to the “revolution step angle” in the range of the patent claim). In addition to being rotationally driven in the clockwise direction of FIG. 3, the rotation process (S16) is performed and the rotation base 30 is rotationally driven by 1/8 rotation in the clockwise direction with respect to the revolution base 19. As a result, the rotation bases 30 arranged at the fixed division positions R1 to R4 move to the fixed division positions R1 to R4 next to them and return to the initial state. Then, again, it is determined whether or not the cam 113 is arranged at the origin (S11), and the above-mentioned operation is repeated. In this way, in the processing machine 10, the work 90 is intermittently sequentially fed to the fixed division positions R1 to R4, and a plurality of through holes 90E are machined from a plurality of different directions with respect to the work 90.

The configuration and operation of the processing machine 10 of the present embodiment have been described above. As described above, according to the processing machine 10 of the present embodiment and the processing method using this processing machine 10, the work jig is in a state where the work 90 is fitted into the work fitting hole 32D of the work jig 40. Together with 40, it moves to a plurality of processing devices 70 and processes the work 90 a plurality of times. As a result, the frequency with which the work 90 is taken in and out of the work fitting hole 32D is suppressed, and the work 90 is less likely to be scratched. Further, since the work jig 40 is provided with a work holding member 43 that comes into contact with one end of the work 90 from the direction of the central axis (rotation axis J2), the work 90 is displaced with respect to the moving work jig 40. Is prevented. Further, the work holding member 43 is formed in the work fitting hole 32D from the first position separated from the work fitting hole 32D in both the central axis direction and the axial orthogonal direction of the work fitting hole 32D, and from the first position in both directions. Since it moves between the second position and the second position, the work 90 can be easily inserted and removed from the work fitting hole 32D with the work holding member 43 arranged at the second position. Moreover, the work jig 40 is provided with a plurality of punch guide holes 32E communicating with the work fitting holes 32D from the side, and the punches 72 of the plurality of processing devices 70 pass through the plurality of punch guide holes 32E to fit the work. Since the work 90 is machined by plunging into the open hole 32D, the positional accuracy between the plurality of workpieces (through holes 90E) machined by the punches 72 of different processing devices 70 can be improved. That is, according to the processing machine 10 of the present embodiment, the surface of the work 90 is not easily scratched and processing can be performed with high position accuracy.

Further, a plurality of rotation bases 30 are rotatably supported around the revolution axis J1 of the revolution base 19, and a work supply device 50, a plurality of processing devices 70, and a plurality of processing devices 70 are provided at a plurality of fixed division positions around the revolution axis J1. Since the work discharge device 80 is arranged, many works 90 can be continuously processed by continuously rotating the revolution base 19.

In the present embodiment, the drive control circuit 130 including the PLC 131 when the revolution process (S15) of the machining control program PG1 is executed corresponds to the "revolution control unit" in the claims, and the machining control program. The drive control circuit 130 including the PLC 131 when the rotation processing (S16, S46) of the PG1 and the driven control program PG3 is executed corresponds to the “rotation control unit” in the claims.

[Other Embodiments]
(1) In the processing machine 10 of the above-described embodiment, the two processing devices 70 operate in the same manner to drill the same plurality of through holes 90E in the work 90, but the work is drilled between the plurality of processing devices. The number of through holes to be formed may be different.

(2) Further, each time the revolution base 30 revolves by a constant revolution step angle, the rotation base 30 is rotated by a constant rotation step angle, and each processing device 70 processes the work 90 from only one direction. May be good.

(3) The processing apparatus 70 of the processing machine 10 of the above-described embodiment has a through hole 90E drilled in the work 90, but a recess may be machined in the work 90.

(4) The processing apparatus 70 of the processing machine 10 of the above-described embodiment processes the work 90 from a direction orthogonal to the rotation axis J2, but processes from a direction diagonally intersecting the rotation axis J2. It may be.

(5) The work 90 processed by the processing machine 10 of the above-described embodiment has a cylindrical shape, but may have a cylindrical shape, a prismatic shape, a prismatic shape, or a shape other than those.

(6) The processing machine 10 of the above embodiment circulates the rotation base 30 to the work supply device 50, the processing device 70, the work discharge device 80, and the work supply device 50 again by the rotation of the revolution base 19. Although it has been moving, the rotation base 30 may be linearly moved to the work supply device 50, the processing device 70, and the work discharge device 80 by, for example, a transfer device provided in the transfer press machine.

10 Machining machine 19 Revolution base 24 Sun gear 25 Planetary gear 30 Rotation base 32D Work fitting hole 32E Punch guide hole 39 Knockout pin 40 Work jig 43 Work support member 43A Arc protrusion wall (work contact part)
50 Work supply device 51 Work push rod 52 Work gripping member 53 Slide base 70 Processing device 71 Core metal 71A Core metal hole 72 Punch 80 Work discharge device 81 Discharge sleeve 81A Tapered part (second taper part)
90 Work 130 Drive control circuit

Claims (10)

It is a processing machine that moves a work jig holding a tubular work to a plurality of processing devices and processes the work multiple times.
The work jig has
A jig base portion having a work fitting hole into which the work is fitted leaving one end thereof, and a jig base portion.
A first position separated from the work fitting hole in both directions of the central axis direction of the work fitting hole and an axis orthogonal direction orthogonal to the central axis direction, and a second position closer to the work fitting hole than the first position in both directions. A work holding member that moves between two positions and abuts on one end of the work from the central axis direction at or near the second position.
An elastic member that urges the work holding member to the second position,
A plurality of punch guide holes that communicate with the work fitting holes from the side are provided.
The plurality of processing devices include
A plurality of cores that can move forward and backward in the work,
A processing machine provided with a punch that rushes into the work fitting hole through the punch guide hole and presses the work in cooperation with the core metal to process the work. A support base that supports the work holding member so as to be linearly movable in the direction orthogonal to the axis and is supported by the jig base portion so as to be linearly movable in the central axis direction.
A first arm that is rotatably supported by the jig base and is pushed and rotated by the work holding member that is separated from the central axis.
It rotates integrally with or in conjunction with the first arm, and when the first arm is pushed by the work holding member and rotates, the support base is separated from the work fitting hole in the central axial direction. The processing machine according to claim 1, further comprising a second lever that presses in a direction of pressing. The processing machine according to claim 1 or 2, wherein the work holding member is arranged at a plurality of positions around the central axis of the work fitting hole and is supported by the common support base. The plurality of pieces are provided at a position different from the processing device, and the work forms a tubular shape passing through the inside and moves linearly on the same axis as the work fitting hole, and in the process of approaching the work fitting hole. A discharge sleeve that slides into contact with the work holding member and retracts the plurality of work holding members to the first position.
The processing machine according to claim 3, further comprising a knockout pin that pushes the work in the work fitting hole toward the discharge sleeve that retracts the plurality of work holding members to the first position. It is provided at a position different from the processing device, has a long shape, and has a temporary holding portion in which the work is temporarily held by fitting the work at the tip portion, and moves directly on the same axis of the work fitting hole. With a push rod that pushes the work into the work fitting hole,
The processing according to claim 3 or 4, further comprising a first sliding contact portion provided on the pushing rod and sliding contact with the work holding member and retracted to the first position in the process of approaching the work fitting hole. Machine. The plurality of work holding members project from the end portion on the side close to the work fitting hole toward the central axis side of the work fitting hole, and the work is fitted to the work fitted in the work fitting hole. A work contact portion that contacts from the direction of the central axis of the hole is provided.
The first sliding contact portion is arranged at an end portion on the side far from the opening of the work fitting hole, and the work holding member is retracted to the first position so as not to bring the work into contact with the work holding member. The processing machine according to claim 5. A revolution base that rotates around the revolution axis,
Among the revolution bases, a plurality of rotation bases arranged at positions that divide the revolution axis into a plurality of equal parts and supported so as to rotate around a rotation axis parallel to the revolution axis.
A sun gear that can rotate around the revolution axis separately from the revolution base,
A plurality of planetary gears provided integrally with the plurality of rotation bases and gear-connected to the sun gears, and the like.
A plurality of the work jigs are provided on the plurality of rotation bases, and are arranged so that the central axis of the work fitting hole and the rotation axis coincide with each other.
A work supply device that supplies the work to the work jig by arranging one of the plurality of fixed division positions in which the revolution axis circumference is equally divided and fixed at the fixed division position.
A work discharge device, which is arranged at one fixed division position different from the work supply device and discharges the work from the rotation base, is provided.
The plurality of processing devices are arranged at the plurality of fixed division positions between the work supply device and the work discharge device.
A revolution control unit that rotates the revolution base in one direction by the revolution step angle so that each work jig sequentially moves from the fixed division position to the adjacent fixed division position.
The processing machine according to any one of claims 1 to 6, further comprising a rotation control unit that positions and controls the sun gear at a plurality of rotation positions according to the rotation of the revolution base. The rotation control unit rotates the rotation base by a preset rotation step angle each time the revolution base revolves by the revolution step angle, and the rotation axis side of the work at each fixed division position. The processing machine according to claim 7, wherein the position of the machine is changed. The rotation control unit positions and controls the rotation base at a plurality of rotation positions during the revolution stop, and at least one of the plurality of processing devices processes a plurality of locations around the rotation axis of the work during the revolution stop. The processing machine according to claim 7 or 8. A processing method for drilling a plurality of through holes orthogonal to the axial direction of a tubular work using the processing machines of claims 1 to 9.

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